Slime/Algae/biofilm Growing in Tank Suddenly

[EastCoastScaping]

So yesterday I noticed excess biofilm growth on my glass and rocks. And some stringy slime like stuff. Today there is a lot more, covering my rocks, frag racks, glass and its wrapping around corals. I havent changed anything recently so I dont know what it is and how to get it to stay away. Any ideas??
Last waterchange was 2 weeks ago and changed 3 gallons from my tank(total of 8gal). Tanks been set up for nearly a year now. One fish, a few ceriths and nassarius snails also. Running red sea blue bucket, and dosing tropic marin all for reef. dKH sits around 7.4, salinity 1.026, No3 at 5-10, and PO4 sits around 0.4 while dosing AF Amino Mix once a week. Im also running a skimmer and some carbon.
Any input helps, pics below.

 

[Billdogg]

To help identify what exactly it is, please take a picture without the blue lights. It is very hard to see anything other than blue in the pictures you have posted.

If I had to guess, what you have is either cyanobacteria or diatoms, possibly a combination of both from the description.

 

[EastCoastScaping]

Hers some photos with some white light

 

[Fishnut]

Looks like a bacterial bloom. Possibly dosing too much.

 

[EastCoastScaping]

Looks like a bacterial bloom. Possibly dosing too much.

I feel like maybe too much aminos? I know that sometimes dosing too much aminos can cause bacteria blooms